In the opening scene, with Bert and Ernie arguing over who's taller, the heads of both Frank Oz and Jim Henson can be briefly glimpsed. Then, when Gordon lifts Ernie, Jim's head is visible once again, as well as his arms.
At the beginning of "What's My Part?", Jim Henson's head briefly pops up while operating Guy Smiley, who's introducing the show. Then, when Guy flips over the game board numbers, some kind of crowbar-like rod is seen helping with the flipping.